ICSC 0661 - HYDROXYLAMINE

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HYDROXYLAMINE	ICSC: 0661 (November 2019)
Oxammonium

CAS #: 7803-49-8

EC Number: 232-259-2

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Gives off irritating or toxic fumes (or gases) in a fire. Risk of explosion on heating. Risk of fire and explosion on contact with many substances. See Chemical Dangers.	NO open flames, NO sparks and NO smoking. NO contact with hot surfaces.	Use water in large amounts, alcohol-resistant foam, powder. In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. Dizziness. Headache. Blue lips, fingernails and skin. Shortness of breath. Weakness.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Administration of oxygen may be needed. Refer immediately for medical attention. See Notes.
Skin	MAY BE ABSORBED! Redness. Pain. Further see Inhalation.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer immediately for medical attention .
Eyes	Redness. Pain. Severe burns.	Wear face shield or eye protection in combination with breathing protection.	Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.
Ingestion	Nausea. Vomiting. Symptoms may be delayed. Further see Inhalation.	Do not eat, drink, or smoke during work.	Rinse mouth. Administration of oxygen may be needed. Refer immediately for medical attention. See Notes.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered non-metallic containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER Unstable explosive May be corrosive to metals Harmful if swallowed or in contact with skin Causes skin irritation Causes serious eye damage May cause an allergic skin reaction Suspected of causing cancer May cause respiratory irritation May cause damage to blood May cause damage to blood through prolonged or repeated exposure Very toxic to aquatic life Transportation UN Classification
STORAGE
Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Dry. Well closed. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
PACKAGING
Do not transport with food and feedstuffs. Marine pollutant.

HYDROXYLAMINE

ICSC: 0661

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance VERY HYGROSCOPIC WHITE NEEDLES OR FLAKES. Physical dangers Chemical dangers May explode on heating above 70°C or when exposed to open flame. Decomposes rapidly at room temperature, especially in the presence of moisture and carbon dioxide, and violently on heating. This produces toxic fumes including nitrogen oxides. Reacts violently with oxidants, metals such as finely divided zinc, some metal oxides, copper(II)sulfate and phosphorus chlorides. This generates fire and explosion hazard.	Formula: H₃NO / NH₂OH Molecular mass: 33.0 Decomposes at <70°C Melting point: 33°C Density: 1.2 g/cm³ Solubility in water at 20°C: freely soluble Vapour pressure, kPa at 47°C: 1.3 Relative vapour density (air = 1): 1.1 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Flash point: explodes at 129°C Octanol/water partition coefficient as log Pow: -1.5

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
VERY HYGROSCOPIC WHITE NEEDLES OR FLAKES.

Physical dangers

Chemical dangers
May explode on heating above 70°C or when exposed to open flame. Decomposes rapidly at room temperature, especially in the presence of moisture and carbon dioxide, and violently on heating. This produces toxic fumes including nitrogen oxides. Reacts violently with oxidants, metals such as finely divided zinc, some metal oxides, copper(II)sulfate and phosphorus chlorides. This generates fire and explosion hazard.

Formula: H₃NO / NH₂OH
Molecular mass: 33.0
Decomposes at <70°C
Melting point: 33°C
Density: 1.2 g/cm³
Solubility in water at 20°C: freely soluble
Vapour pressure, kPa at 47°C: 1.3
Relative vapour density (air = 1): 1.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: explodes at 129°C
Octanol/water partition coefficient as log Pow: -1.5

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance is corrosive to the eyes. The substance is irritating to the skin and respiratory tract. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.	Inhalation risk No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the blood. This may result in the formation of methaemoglobin and consequent anaemia. Tumours have been detected in experimental animals but may not be relevant to humans.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

Effects of short-term exposure
The substance is corrosive to the eyes. The substance is irritating to the skin and respiratory tract. The substance may cause effects on the blood. This may result in the formation of methaemoglobin. The effects may be delayed. Medical observation is indicated.

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the blood. This may result in the formation of methaemoglobin and consequent anaemia. Tumours have been detected in experimental animals but may not be relevant to humans.

OCCUPATIONAL EXPOSURE LIMITS
MAK sensitization of skin (SH)

ENVIRONMENT
The substance is very toxic to aquatic organisms.

NOTES
Do NOT take working clothes home. Depending on the degree of exposure, periodic medical examination is suggested. Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. Decomposition during storage may cause a build-up of pressure in the container. This substance is usually commercially available as a solution. See ICSCs 709 and 1747.

NOTES

Do NOT take working clothes home.
Depending on the degree of exposure, periodic medical examination is suggested.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
Decomposition during storage may cause a build-up of pressure in the container.
This substance is usually commercially available as a solution.
See ICSCs 709 and 1747.

ADDITIONAL INFORMATION

EC Classification
H200; H290; H302; H312; H315; H318; H317; H335; H351; H373; H400

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